Radiator.



J. M. FEDDERS.

RADIATOR. APPLICATION FILED JULY 31, 1914..

Patented May18,191 .5

'NVENTEIR 7 TE! Fms Ya rinrrnn srafrss earner ora on- JOHN M. FEDIDEBS, OF BUFFALO, NEW YORK, ASSIGNOR TO FEDDER$ MANUFACTURING- COMPANY, 11-16., OF BUFFALO, NEW YQRK, A CORPORATION OF YORK.

RADIATOR.

Application filed July 31, 1914. Serial No. 854,266.

To all whom it may concern:

Be it known that 1, JOHN M. Fnoonns, a citizen of the United States, residing at Buffalo, in the county of Erie and'State of New provements in Radiators, of which the fol lowing is a specification.

This invention relates to the core for radiators such as commonly employed for cool- 19 ing the water of automobile explosion engines and has for its object to produce such radiators at low cost, of a greater durability and high cooling efficiency.

In the accompanying drawings: Figure 1 is a fragmentary elevation of an automobile radiator having its core constructed in accordance with my invention. Fig. 2 is a vertical transverse section of the same taken in. line 2-2, Fig. 41 Fig. 3 is a horizontal and 5 are vertical longitudinal sections taken in the correspondingly numbered lines in Fig. 2. Fig. 6 is a. fragmentary perspective view of one of the metal strips employed in the construction Ofmy improved radiator core. I a

Similar characters of reference indicate corresponding parts throughout the several views. In the organization of the radiator shown in the drawings the same comprises an upper water inlet header, a lower water outlet header 2, a plurality of upright water passages, channels or tubes 3 communicating at their upper and lower ends, respectively, with the upper and lower water'headers. and a plurality of horizontal air passages, channels or tubes '4, preferably of hexagonal form in cross section, extending lengthwise from the front to the rear side of the radiator, a vertical row of such air passages being formed between every two adjacent water passages. The core of he radiator which contains rality of sheet metal strips each of which is bent or shaped to form a plurality of webs 5, 6 which are arranged zig-zag relatively to each other, each web forming a wall of one of the air passages. The strip'is so constructed as to form a plurality of pairs of plait webs 5 and a plurality of pairs of seat webs 6, the'same being so disposed that the members of each pair of seat webs are arranged adjacent to each other and the mem- Specification of Letters Patent.

York, have invented new and useful Imsection taken in line 3-3, Fig. 2. Figs. l

the water and air passages comprises a pluv Patented May 18, 1915.

bers of each pair of plait webs are also arranged adjacent to each other, and the sevseveral pairs of plait webs.

. The longitudinal edges or corner between the members of each pair of seat webs are bent from the inner toward the outer side of this cornergso as to form a longitudinal concave seat 7 at the apex between two companion seat webs which constitute a pair. Each of the strips is also provided with a plurality of plaits 8 each of which forms v a wall for each of two adjacent air passa es. Each of the plaits has its two sides or flijaps connected at the crown or outer edges thereof while the base or inner edges thereof are connected, respectively, with the opposing edges of two adjacent plait webs of a pair so that this plait projects laterally from" the outer corner between the respective plait webs. The corner between the longitudinal edge of each plait web and the adjacent seat web is flattened as shown at 9. At its opposite edges each strip is provided with offsets 10 which project laterally therefrom on that side opposite to the-aside of the strip from which the plaits are arranged. Strips of this form are assembled so that the crown of each plait engages with one of'the concave seats 7 of one adjacent strip and forms a plurality of hexagonal air passages therewith and so that th e'oif-set of one strip engages with the off-set of another strip and forms a zig-zag water passage therebetween.

The off-sets-of the strips are connected with each other so as to form a water tight jointbetween the same this being preferably effected by soldering them together. In like manner the upper and lower ends of the strips are connected with the upper and lower,

Owing to the flattening of the corners between each plait web and the adjacent seat web these parts of each strip are spaced apart from the convex sidepf those portions of the strip which are deflected inwardly into the water passages to form the seatsfor the crowns of the plaits, thereby providing clearance at these places and producing unobstructed water passages of zigzag shape from'the upper inlet to the lower outlet header.

Although it is not necessary to flatten those corners between the seat Webs and plait webs of one strip which are arranged opposite the bases of the plaits of another" strip, it is preferable to do so inasmuch as the tools for making these strips can be made uniformly and no particular care on the part of the workmen is necessary in as sembling the strips when making a core inasmuch as, by this means it is immaterial whether the plaits of one strip are arranged in line With one or another flattened corner of another strip to secure a free flow through the respective water passage. When the several strips are thus assembled the air passages or tubes of one row are staggered relatively to the air passages or tubes of adjacent rows so that alternate rows of air,

passages terminate at the upper and lower headers in whole air passages or tubes and half air passages or tubes. In order to exclude the Water in the headers from the upper and lowermost air passages of each row the ends of, every two strips between which a row of air passages 'is formed are connected by a seam 11, as shown in Fig. 2, or by any other suitable manner.

The construction of my radiator core is comparatively low in cost, the same is very strong and capable of withstanding the webs arranged zig-zag relatively to each and each plait having thecrown of its sidesconnected and the base'thereofreon nected respectively With the, opposing longitudinal .edges of a pair of plait Webs, said strips being assembled so that the crown of each plait engages with one of the concave. seats of-one adjacent strip-andforins a plurality of hexagonal air passages therewith and is spaced apart from another adjacent strip to form' a zig-zag Water passage therebetween, each ofthe corners between the meet" ing edges of a plait web and an adjacent seat web of one strip which is opposite the seat of another strip being flattened so as to space said corner apart from the convex side of said seat. i

2, A radiator core haying water and air passages arranged at right angles to' each other and comprising a plurality of strips which are of zig-zag form and assembled so that each strip forms a'plurality of air passages with one adjacent strip and a water passage With-ZHOthGZ adjacent strip, and one strip of each pair having some pr its cor ners deflected to form concave seats which are'engaged-by parts oit an adjacent strip and the companion stripj-of said pair having some oii-its corners deflected to form clearance spaces between the same and. an

adjacent seatof the other strip.

Witness my. hand this 29th day of July, 14

JOHN M. FEDDERS. Witnesses: v

E. M. GRAHAM, ANNA HEIGIS. 

